linux-kernel - [PATCH v2 55/61] mmc: pwrseq: sd8787: Convert to platform remove callback returning void

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Message-Id: <20230726040041.26267-55-frank.li@vivo.com>
Date:   Wed, 26 Jul 2023 12:00:35 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Yangtao Li <frank.li@...o.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 55/61] mmc: pwrseq: sd8787: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 drivers/mmc/core/pwrseq_sd8787.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/core/pwrseq_sd8787.c b/drivers/mmc/core/pwrseq_sd8787.c
index 0c5f5e371e1f..0c5808fc3206 100644
--- a/drivers/mmc/core/pwrseq_sd8787.c
+++ b/drivers/mmc/core/pwrseq_sd8787.c
@@ -113,18 +113,16 @@ static int mmc_pwrseq_sd8787_probe(struct platform_device *pdev)
 	return mmc_pwrseq_register(&pwrseq->pwrseq);
 }
 
-static int mmc_pwrseq_sd8787_remove(struct platform_device *pdev)
+static void mmc_pwrseq_sd8787_remove(struct platform_device *pdev)
 {
 	struct mmc_pwrseq_sd8787 *pwrseq = platform_get_drvdata(pdev);
 
 	mmc_pwrseq_unregister(&pwrseq->pwrseq);
-
-	return 0;
 }
 
 static struct platform_driver mmc_pwrseq_sd8787_driver = {
 	.probe = mmc_pwrseq_sd8787_probe,
-	.remove = mmc_pwrseq_sd8787_remove,
+	.remove_new = mmc_pwrseq_sd8787_remove,
 	.driver = {
 		.name = "pwrseq_sd8787",
 		.of_match_table = mmc_pwrseq_sd8787_of_match,
-- 
2.39.0